TABLE 5.

Mean percentage of different bacterial groups within the mucosal biofilm

ParameterCD patientsUC patientsSlc patientsIBS patientsControls
Mean % of the following bacterial groups within biofilm:
    Bacteroides-Prevotellaa (P < 0.001)b71 ± 2062 ± 2540 ± 1920 ± 1820 ± 11
Bacteroides fragilisa (P < 0.001)b60 ± 2130 ± 1731 ± 1614 ± 1016 ± 12
Eubacterium rectale-Clostridium coccoidesa (P < 0.001)b14 ± 135 ± 418 ± 1548 ± 1932 ± 13
Fusobacterium prausnitziia (P > 0.05)b6 ± 87 ± 79 ± 713 ± 1210 ± 8
Enterococcus faecalisa41310.1
No. (%) of patients positive for E. colic10 (53)8 (44)9 (47)5 (41)1 (25)
Mean (maximum) concn of E. colic11 (60)5 (10)9 (48)4 (10)<1
  • a Bacterial groups detected in each patient with mucosal bacteria.

  • b The P value gives the difference between groups with inflammation (CD, UC, and slc patients) and groups without colonic inflammation (IBS patients and controls).

  • c Bacterial groups detected in subsets of patients positive for mucosal bacteria.